“…Thus, based on the literature, several variables were identified as potentially related to PIN: risk (Easley, Kiefer, O'Hara, & Paperman, 1996), return (Easley, Hvidkjaer, & O'Hara, 2002), abnormal return (Clarke & Shastri, 2000), liquidity (Amihud & Mendelson, 1989), volatility (Halov & Heider, 2011), capital structure (Leland & Pyle, 1977), cost of capital (Easley & O'Hara, 2004), size (Aslan, Easley, Hvidkjaer, & O'Hara, 2011), market-to-book ratios (McLaughlin, Safieddine, & Vasudevan, 1998), price/earnings (Clarke & Shastri, 2000), dividend policy (Myers & Majluf, 1984), earnings management (Aboody, Hughes, & Liu, 2005) and corporate governance (Chen, Chen, & Wei, 2009). …”